Ryzen 9 7950X vs 3900X
Description
The 7950X is based on Zen 4 architecture while the 3900X is based on Zen 2.
Using the multithread performance as a reference, the 7950X gets a score of 1597.8 k points while the 3900X gets 756.3 k points.
Summarizing, the 7950X is 2.1 times faster than the 3900X. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 7950X gets a score of 1597.8 k points while the 3900X gets 756.3 k points.
Summarizing, the 7950X is 2.1 times faster than the 3900X. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
a60f12
870f10
Core
Raphael
Matisse
Base frecuency
4.5 GHz
3.8 GHz
Boost frecuency
5.7 GHz
4.6 GHz
Socket
AM5
AM4
Cores/Threads
16/32
12/24
TDP
170 W
105 W
Cache L1 (d+i)
16x32+16x32 kB
12x32+12x32 kB
Cache L2
16x1024 kB
12x512 kB
Cache L3
131072 kB
4x16384 kB
Date
September 2022
July 2019
Mean monothread perf.
121.33k points
72.51k points
Mean multithread perf.
1597.79k points
756.3k points
Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
7950X
3900X
Test#1 (Integers)
6.05k
4.46k (x0.74)
Test#2 (FP)
23.41k
18.46k (x0.79)
Test#3 (Generic, ZIP)
16.49k
8.05k (x0.49)
Test#1 (Memory)
34.35k
23.71k (x0.69)
TOTAL
80.3k
54.68k (x0.68)
Multithread
7950X
3900X
Test#1 (Integers)
128.82k
52.65k (x0.41)
Test#2 (FP)
465.79k
265.41k (x0.57)
Test#3 (Generic, ZIP)
289.43k
140.78k (x0.49)
Test#1 (Memory)
75.23k
46.91k (x0.62)
TOTAL
959.27k
505.76k (x0.53)
AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
7950X
3900X
Test#1 (Integers)
26.86k
16.95k (x0.63)
Test#2 (FP)
30.05k
25.37k (x0.84)
Test#3 (Generic, ZIP)
16.15k
9.23k (x0.57)
Test#1 (Memory)
31.74k
24.83k (x0.78)
TOTAL
104.8k
76.38k (x0.73)
Multithread
7950X
3900X
Test#1 (Integers)
430.6k
196.31k (x0.46)
Test#2 (FP)
545.91k
290.5k (x0.53)
Test#3 (Generic, ZIP)
289.57k
143.95k (x0.5)
Test#1 (Memory)
64.33k
64.92k (x1.01)
TOTAL
1330.41k
695.69k (x0.52)
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
7950X
3900X
Test#1 (Integers)
40.61k
16.73k (x0.41)
Test#2 (FP)
31.82k
24.74k (x0.78)
Test#3 (Generic, ZIP)
16.63k
8.82k (x0.53)
Test#1 (Memory)
32.28k
22.22k (x0.69)
TOTAL
121.33k
72.51k (x0.6)
Multithread
7950X
3900X
Test#1 (Integers)
683.17k
248.24k (x0.36)
Test#2 (FP)
563.45k
309.66k (x0.55)
Test#3 (Generic, ZIP)
286.77k
140.01k (x0.49)
Test#1 (Memory)
64.4k
58.39k (x0.91)
TOTAL
1597.79k
756.3k (x0.47)
Performance/W
7950X
3900X
Test#1 (Integers)
4019 points/W
2364 points/W
Test#2 (FP)
3314 points/W
2949 points/W
Test#3 (Generic, ZIP)
1687 points/W
1333 points/W
Test#1 (Memory)
379 points/W
556 points/W
TOTAL
9399 points/W
7203 points/W
Performance/GHz
7950X
3900X
Test#1 (Integers)
7124 points/GHz
3638 points/GHz
Test#2 (FP)
5582 points/GHz
5377 points/GHz
Test#3 (Generic, ZIP)
2917 points/GHz
1917 points/GHz
Test#1 (Memory)
5663 points/GHz
4831 points/GHz
TOTAL
21286 points/GHz
15763 points/GHz
Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4